If I may suggest, we don't need to place most of our emphasis on the "conquered" part of the "Captive Government" description. The description uses the term "control" and control doesn't necessarily mean "planetary invasion". Remember, the description uses the term "colony" too.
As I've mentioned before, I'd change the wording of government type 6 and replace "captive" with 'colonial'. The word "captive" does not seem to be the best, most correct word to use here; it has specific meanings that limit its use it this context.
The term 'colonial' can cover both connotations related to colonies; controlled involuntarily such as British Raj over India, and voluntary colonies such as Guam. The term "colony" can be used to name 'captive' worlds as before, but it can also be used to name one of the many many colonies that Imperial worlds seem to scatter all over the place...even on worlds that already have populations on them.
Mao was a genocidal moron and power flows from many more places than the mouth of a gun. As you pointed out by referring to the current euro crisis, there are many more ways to be "controlled" and "captive" than having soldiers in the streets.
Military conquest would be overly expensive compared to other forms of coercion, eh?
Diplomacy and economics...THAT'S how its done. Armies are a last resort.
timeline said:Vegan Polity joins the Third Imperium. After intense diplomatic and economic pressure, the Vegans are intimidated into accepting Imperial rule. Rim of Fire, SJG, 2000, p. 54.